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Schneider Electric C25N4TM250 — Miniature Circuit Breakers (MCB)

Schneider Electric C25N4TM250 ComPacT NSX250N, 250A, 50kA 41

MPNC25N4TM250
Obsolete

Schneider Electric ComPacT NSX250N, 4P, 250 A, TM-D thermal-magnetic trip unit, 50 kA Icu at 415 V AC, toggle control, backplate mount.

$655.43Ref. price · indicative, final on quote
Schneider Electric C25N4TM250 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C25N4TM250 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationDistribution
C25N4TM250 — Ratings
ParameterValue
Rated current (In)250 A at 40 °C
Poles configuration4P
Breaking capacity90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 50 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 15 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1
Rated service breaking capacity (Ics)90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated operational voltage (Ue)690 V AC 50/60 Hz
Rated insulation voltage (Ui)800 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Network type (AC/DC)AC
Network frequency50/60 Hz
Utilisation categoryCategory A
Overvoltage categoryIII
C25N4TM250 — Protection
ParameterValue
Trip unit technologyThermal-magnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)20000 cycles at 440 V In/2 10000 cycles at 440 V In 10000 cycles at 690 V In/2 5000 cycles at 690 V In
Mechanical durability (cycles)20000 cycles
C25N4TM250 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C25N4TM250 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-50...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
C25N4TM250 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C25N4TM250 — Specifications
ParameterValue
[Ir] long-time protection pick-up adjustment range0.7...1 x In
Trip unit protection functionsLI

Product details

The C25N4TM250 is a Schneider Electric ComPacT NSX250N 4-pole circuit breaker with a TM-D thermal-magnetic trip unit rated 250 A at 40 °C. The thermal-magnetic trip gives you two protection curves in one device: the thermal element (L) for overload protection, and the magnetic element (I) for short-circuit protection. No separate earth-leakage module here — the listing shows earth-leakage protection as 'Without', so if you need ground-fault detection, plan on an external Vigi add-on or a separate relay.

The 140 mm width, 161 mm height, and 86 mm depth fit standard NSX cutouts. Front connections top and bottom simplify bus-bar and cable routing in a panel. The neutral sits on the left (4-pole, 4D neutral protection set at 1 x Ir). Toggle control, IP40 enclosure rating (finger-safe, not washdown), and IK07 impact resistance.

Rated for 20,000 mechanical cycles and 20,000 electrical cycles at 440 V at half rated current (In/2), or 10,000 cycles at full rated current (In). At 690 V, the electrical durability drops to 5,000 cycles at In/2 and 2,500 at In — expect shorter life on higher-voltage circuits. The breaker is certified for isolation per EN/IEC 60947-2, meaning it can be used as a visible disconnect when open. Utilisation category A (non-frequent switching) is standard for distribution breakers — not intended for motor starting duty.

Frequently asked questions

Where can I buy C25N4TM250 and how do I get a price?

The C25N4TM250 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the closest pin-compatible alternative to C25N4TM250 in this component family?

Within the ComPacT NSX family, the closest alternative would be a breaker with the same frame (NSX250N) but a different trip unit rating or type — for example, a Micrologic electronic trip unit instead of the TM-D thermal-magnetic. The physical footprint and mounting are identical; the trip curve and adjustability differ. No direct pin-compatible substitute exists outside the NSX250N frame.

What is C25N4TM250's listed range (ComPacT) on this component line?

The range is ComPacT, and the product name is ComPacT NSX. This is Schneider's modular molded-case circuit breaker platform for distribution and protection.

What is C25N4TM250's listed depth (d) (86 mm) on this component line?

The depth is 86 mm. This is the front-to-back dimension of the breaker body, not including any handle or accessory protrusions.

What compliance documentation does this brand provide for C25N4TM250 (RoHS, REACH, UL, IEC)?

The breaker is certified to EN/IEC 60947-2 and UL 60947-4-1. The IEC standard covers low-voltage switchgear and controlgear; the UL listing is for industrial control equipment. RoHS and REACH compliance documentation is typically available from Schneider's product compliance portal for the ComPacT NSX family.

MPN
C25N4TM250